nav.navigation {
  @extend .nav, .nav-pills, .flex-column, .p-3;

  width: $navigation-width;

  .button--alt {
    @extend .btn, .btn-outline-light, .mb-2;
  }

  .navigation__link {
    @extend .nav-link;
  }

  .navigation__link--active {
    @extend .active;
  }
}